EP0097879A2 - Appareil de forage - Google Patents

Appareil de forage Download PDF

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Publication number
EP0097879A2
EP0097879A2 EP83105877A EP83105877A EP0097879A2 EP 0097879 A2 EP0097879 A2 EP 0097879A2 EP 83105877 A EP83105877 A EP 83105877A EP 83105877 A EP83105877 A EP 83105877A EP 0097879 A2 EP0097879 A2 EP 0097879A2
Authority
EP
European Patent Office
Prior art keywords
drill
shaft
drilling tool
tool according
drilling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83105877A
Other languages
German (de)
English (en)
Other versions
EP0097879B1 (fr
EP0097879A3 (en
Inventor
Uwe Christian Seefluth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gelsen Karl-Heinz
Original Assignee
Gelsen Karl-Heinz
Sita Bauelemente GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19823224141 external-priority patent/DE3224141A1/de
Priority claimed from DE19823225519 external-priority patent/DE3225519A1/de
Priority claimed from DE19823237721 external-priority patent/DE3237721A1/de
Application filed by Gelsen Karl-Heinz, Sita Bauelemente GmbH filed Critical Gelsen Karl-Heinz
Priority to AT83105877T priority Critical patent/ATE57489T1/de
Publication of EP0097879A2 publication Critical patent/EP0097879A2/fr
Publication of EP0097879A3 publication Critical patent/EP0097879A3/de
Application granted granted Critical
Publication of EP0097879B1 publication Critical patent/EP0097879B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
    • B23Q1/0018—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
    • B23Q1/0027—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained
    • B23Q1/0036—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained one of those parts being a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/0413—Drills for trepanning with core-cutting-off devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0046—Devices for removing chips by sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/006—Parallel drill and motor spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/068—Crank-actuated impulse-driving mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/23—Cutting by use of rotating axially moving tool including means to cause Tool to progressively vibrate toward work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/50—Cutting by use of rotating axially moving tool with product handling or receiving means
    • Y10T408/51—Ejector

Definitions

  • the invention relates to a drilling tool for stationary and mobile use as a hand tool, in particular motorized as a rotary, impact or hammer drilling tool for drilling in concrete, stone, or similar materials and / or metals of various types, with a drill head on at least one Shank comprising drill shaft, which has a recess which extends through the drill head, extends coaxially to the longitudinal axis of the shaft and is intended for receiving a drill core - in particular a central bore - which is provided at its end facing away from the drill head with an outlet orifice for received drill core material.
  • the drilling tools which are mainly designed as deep hole drills, are designed as smooth tubes with a central bore for the small drill suction and are fitted with attached drill heads.
  • Various types of rock drilling tools of this type with small drill extraction have become known, which differ essentially in the different design of the cutting edges on the drilling head.
  • the various known types of these drilling tools are designed as full drills, which receive a certain increase in drilling progress through the cuttings extraction.
  • the disadvantage of these known designs, however, is that the entire material to be drilled has to be broken up and extracted (DE-OS 2U 38 979).
  • the object is achieved in that the outlet mouth of the recess of the shank is arranged in a shank region which is outside the drill head and an outer, if appropriate, adjoining it Spiral or spiral formation of the drill shaft is provided.
  • the drilling tool according to the invention it is ensured that the drilling core material received in the recess of the shank can continuously move through the recess and emerge from the recess at a point remote from the drilling head.
  • the arrangement of the outlet mouth of the recess at a spiral or helix-free point of the drill shaft ensures that a risk of clogging and jamming occurring in the prior art is avoided. This also reduces the power requirement of the drilling process and promotes its feed rate. Furthermore, this creates the prerequisite for suctioning off the core material, even if it is derived from the shaft shortly behind the drill head in the case of a smooth-walled design of the drill shaft.
  • the drilling tool can consist of a hollow drill with axially continuous engagement. and a drive machine recording this, in which the recess continues.
  • the shank of the drilling tool then comprises the drill shank and a shank area which can comprise parts of the drilling machine, in particular rotating parts such as drill chucks, drive and / or impact shaft of the machine or other functional parts, in particular as a central bore of these parts.
  • the recess can be passed through the drive machine and its outlet mouth can be provided on the side of the machine facing away from the drill chuck. This version is particularly suitable for hard-to-break cores with a relatively large diameter.
  • the outlet mouth of the recess can also merge within the machine, for example shortly behind the drill chuck, into a lateral outlet mouth of the shaft region, so that the core material can preferably be collected laterally by a collecting container.
  • This version will preferably be used for more easily refracting cores or small core diameters.
  • a particular advantage of including the drive machine in the drill core discharge is that practically all types of hollow drills with an axially continuous recess can be used.
  • the recess is limited to the drill shaft, so the shaft consists only of the drill shaft.
  • the recess is then connected at its end facing away from the drill head to an outlet orifice which engages through the side wall of the drill shaft in a region between the drill head and the drill clamping formation, which is free of a spiral or helical formation.
  • all features of the invention are realized on the drill then forming the drilling tool itself, which has the advantage that this drilling tool can be driven with a commercially available drive machine.
  • the area in which the outlet opening passes through the side wall of the drill shank lies between the clamping formation of the drill and the end of the spiral or helix formation facing it.
  • the outlet mouth can be arranged somewhere in the area between the clamping formation of the drill shaft and the drill head, also just behind it.
  • the outlet opening is connected to a collecting container for the core material, which is preferably held or fastened in a stationary or machine-fixed manner.
  • a suction device which, depending on the embodiment, can be connected to the drill shaft or the machine-side outlet with a suction basket.
  • a suction basket can replace the above-mentioned receptacle or be formed by it.
  • the drill shaft When a suction device is connected, the drill shaft is preferably provided with a sheathing, which forms an essentially sealed free space for the drilling dust suction between the drill shank and the sheathing, which by means of open passages both with the suction basket and - preferably by means of additional suction channels running through the drill head - communicates with the working area of the drill on the drill head.
  • the drill shaft can consist of a - preferably thin-walled - tube, to which the drill head and the drill holder - in particular by soldering, welding or gluing - are particularly positively fastened, while the inner diameter of the drill shaft and the outer diameter of the drill shaft are dimensioned so that
  • the recess or central longitudinal bore for core drilling is used simultaneously as a suction channel and the free space between the drill shaft and the borehole wall as the supply air channel.
  • the preferred embodiment of the invention is such that the transition between the recess and the outlet mouth is designed as a flat angle or an arcuate path, in particular as a slot in the shaft wall, which can be easily produced by segment milling.
  • This slit-like design of the transition which widens towards the outlet mouth, enables the drill core material to be ejected without jamming, even when irregular fragments occur.
  • the suction can be restricted to a proportion of drilling dust that dissolves in particular in the peripheral region of the drill core material, in which suction slits are made in the shaft wall in the area of a suction basket to be attached to the drill shaft or the shaft area inside a drive machine, through which suction slots finer core portion is extracted.
  • the coarser core material passes through this area and is discharged behind it to the side or after the machine has passed through the end facing away from the drill into a collecting container.
  • the outlet opening is then preferably provided with a valve device which enables the drill core material to exit, but largely prevents air from entering through this outlet opening.
  • the drill shank 2 of a hollow drill shown only partially is fastened in the drill holder (chuck) 1.
  • the recess 3 of the drill shank 2 which is designed as a central hollow channel, runs through the entire drill and is in the drill within a shank region 7, which here is a drive or impact shaft is formed, continued centrally around the longitudinal axis 4.
  • the shank encompassing the entire recess 3 thus consists of the drill shank 2 and the shank region 7.
  • the core of the drill thus pushes through the recess 6 in the shank region 7, which is designed as a hollow channel, and reaches the rear end of the drill through the outlet mouth 5 Free.
  • the drill core is broken automatically or by a suitable angle and - if required - collected in an attached container.
  • the hammer 8 which oscillates through the drive piston 9 and air cushion 10, is arranged parallel to the impact and drive shaft and at a distance from its longitudinal axis in order to keep the construction costs as low as possible.
  • the diameter of the recess 6 of the shank region 7 is advantageously larger than that of the recess 3 of the drill shank 2 and is matched to the maximum drill size that can be used for the drilling machine or its largest hollow channel diameter.
  • the principle described above can also be used for turning or percussion drilling machines.
  • the hammer 20 is conventionally arranged in the extended axis line 14 of the hollow drill 12.
  • the recess 13 ces formed as a hollow channel in the drill chuck 11, the hollow drill shaft 1.2 runs in this embodiment also into the impact and drive shaft, which forms the shaft region 17 lying inside the machine, but is - preferably close behind the drill chuck 11 - as Recess 16 with a slightly larger diameter laterally led out of the rotating shaft region 17.
  • the deflection 18 of the hollow channel 16 is advantageously dimensioned so flat that the remaining drill Core breaks automatically through the feed during drilling and enters the cavity 19 which surrounds the rotating ejection channel 21 with the outlet mouth 22. In this way, the core material passes through the opening 15 on the drill housing into the open or is collected by a container (not shown) attached there.
  • the shape of the latter can be designed as a circular segment-shaped milling in side projection.
  • FIG. 2A shows the cross section IIA-IIAdes ejection channel 21 of the shaft 17 in a possible embodiment.
  • the drill shaft 31 has a helix in the drilling area for the removal of the drilling dust and, in the upper shaft area 35, adjacent to the drill clamping formation 34, the ejection channel 36 with outlet mouth 48, which in this case is designed such that the lateral deflection of the central longitudinal bore formed recess 33 of the drill shaft 31 below the drill clamping formation 34 is formed by a one-sided, deepening in the drill shaft - preferably circular segment-shaped in a side view - milling.
  • the recess 33 which is designed as a bore concentric with the longitudinal axis 32 of the drill, ends at the ejection channel 36 and is guided out of the drill shaft on one side.
  • the remaining core pushes through the recess 33 and is broken by the lateral deflection (curvature) of the ejection channel 36 and discharged into the open through the outlet mouth 48.
  • the angle of the deflection in the ejection channel is expediently matched to the core thickness, so that core cores of larger diameter can also be broken by a flat angle or curvature.
  • FIG. 3A shows how the core discharge can be shaped in cross section IIIA-IIIA.
  • FIG. 4 shows how the longitudinal recess 33 at the drill tip - preferably as a step-like constriction 37 - has a reduced diameter. In this way it is achieved that the remaining core does not jam within the recess.
  • a further step in the sense of an extension can also be provided in the course of the longitudinal expansion of the recess by the drill, or the recess gradually widens from the tip upwards.
  • the drill shaft consists of a tube 38 with a hollow channel 46 running in the direction of the longitudinal axis 47, onto which the helix 39 is attached.
  • the coiled shaft area 42 Above the coiled drilling area is the coiled shaft area 42, which has the ejection channel 44 with an outlet mouth 49.
  • the wall curvature 45 extending to the side is designed so curse that a relatively thick core can be broken by the feed ge.
  • the drill chuck training 43 can be designed in various ways in accordance with the adaptation to the respective drill chuck.
  • the drill head in the form of a drill bit 40 with hard-metal cutting edges 41 soldered in.
  • the drill head can also be provided with only two main cutting edges on the drill tip in this type of drill.
  • the diameter of the helical or spiral-free shank region 42 below the drill clamping formation 43 is dimensioned equal to the diameter of the drill tip or drill head or greater than this diameter.
  • the drill clamping 43 can be designed in a variety of ways according to the adaptation to the respective drill chuck.
  • the core ejection principle according to the invention can also be used in metal drilling.
  • twist drills with two main cutting edges can be used for drilling metals, in which the poor efficiency of the cross cutting edge is eliminated and the drill core is led out laterally - by bending - out of the drill shank.
  • This drilling principle can also be used with metal drills with more than two main cutting edges or with metal crown drills.
  • the drill shaft 51 comprises a recess 53 designed as a longitudinal central bore, which begins at the tip 52 of the drill and ends in an angle or bend in the area of the suction basket 59 of a small-bore suction device.
  • the drill shaft 51 has a casing 56, so that a free space or cavity 57 is formed between the drill shaft 51 and casing 56, through which the drilling dust can be extracted.
  • the free space 57 is connected via the passages 58 to the interior of the suction basket 59, with rend between casing 56 and borehole wall due to the difference in diameter between the outer diameter of the casing 56 and that of the drill head 60 also creates a space in which the supply air can be introduced for the suction process.
  • the outer diameter of the casing is made smaller than the drill head diameter.
  • the Ausneh mung 53 is also on the side outlet 55 with the interior of the suction basket 59 in connection, which is arranged in the vicinity below the drill clamping formation 54 and can be rotated relative to the drill shaft 51 ge.
  • the recess 63 designed as a central longitudinal bore, for core drilling with lateral drill core ejection begins at the tip 62 of the drill and ends directly above the drill head 70 via the outlet mouth 65 on the surface of the drill shaft 61.
  • the drill shaft 61 is with a Provide casing 66, whereby a cavity 67 is created for the extraction of the cuttings including the broken core material.
  • the suction channel 67 is connected to the interior of the suction basket 69.
  • the additional suction channel 71 establishes the connection between the suction channel 67 and the working area of the drill at the drill tip in order to extract the drilling dust accumulating there, as is also the case in the example according to FIG. 6.
  • all intermediate positions can be selected by arranging the bending or bending of the central longitudinal bore at any point of the drill shaft between the drill clamping formation 54 or 64 and the drill head 60 or 70 .
  • the casing 56 or 66 can be designed to be longitudinally corrugated. This not only increases the strength of the casing, but also the space for the supply air duct. In addition, the diameter of the casing can then be adapted to the diameter of the drill head.
  • FIG. 8 shows the partial illustration of a hollow or core drill, on the tip (drill head) of which a tapping device 75 is attached, preferably attached releasably by means of a snap spring.
  • this tapping device 75 has a central tip 76 that starts first and also main cutting edges 77, which only reach the drilling attachment when the drilling progress is slow and have the diameter of the drill head of the drill on which the tapping device is attached. In this way it is achieved that a hollow drill can be applied in a targeted manner without the drill running out of the drilling area. After a few millimeters have been drilled, the drilling device 75 is removed from the drill, which can then be placed in the created depression without breaking out.
  • Fig. 9 shows a hollow or core drill in combination with cuttings in a simplified form.
  • the drill shaft 81 consists of a relatively thin-walled steel tube, on which the drill head 82 and the drill clamping arrangement 83 are fastened with the specially shaped shaft part 84 by soldering or welding.
  • the outer diameter of the drill shaft 81 is dimensioned in this embodiment so that a distance, represented by the distance 80, arises between the outer wall of the drill shaft 81 and the borehole wall, through which space created in this way the supply air for the drilling fluid suction can be introduced.
  • the inner diameter constriction 85 of the drill head 8? the diameter of the remaining drill core is smaller than that by twice the radius difference 80a
  • Inner diameter of the drill shaft 81 so that here a free or hollow space is created through which the cuttings can be sucked off.
  • the material of the remaining (not crushed) drill core and the drill dust accumulating at the drill tip are located in a common cavity 81 'of the drill shank 81 and are extracted by the cuttings extraction via the suction basket 86, the exhaust air duct 87 and the hoses connected to it the area of the drill.
  • the core material is ejected from the hollow channel of the steel tube drill shaft 81 by the bend 88 of the shaft part 84. In this way, a combination of core drilling, lateral drilling core ejection and cuttings extraction is made possible with very simple means.
  • the drilling tool shown in Fig. 10 from a Antriebsmaschi ne and a hollow drill with a continuous recess 93 in the form of a central bore corresponds approximately to the embodiment of FIG. 1 seen from the type of core guide.
  • the Ausappelunp. 93 of the hollow drill shaft 92 clamped in the drill chuck 91 continues - preferably slightly expanded - in the recess 96 of a shaft region 97 which is arranged in the interior of the machine and in particular is formed by the shaft shaft of a drive shaft which rotates with the drill.
  • the recess 96 in the form of a Zen-Lralbohrung is continuous to the rear of the machine and closes there with the outlet mouth 95, so that there is a straight continuous path for the transport of core material from the drill tip to the machine rear side, the axially one another following wall sections no differential movement to each other 1
  • drilling cuttings which can vary in quantity and granularity depending on the material being drilled and which, in particular if the diameter of the recess remains the same, impairs the ease of movement of the core transport.
  • the outlet mouth 95 is covered by a one-way valve device 90 which allows the rough coarse core material to pass through and obstructs the entry of outside air into the outlet mouth 95.
  • a sleeve made of elastic material can be used, which encompasses the emerging core in the sense of a resilient system, as is schematically indicated in the example shown.
  • Such a suction limited to drilling cuttings or drilling dust can also be provided in the drilling tools limited to the drill according to FIGS. 3 to 6 and 9, the openings 94 and the surrounding suction basket 98 - in FIGS. 6 and 9 instead of the suction basket 59 or 86 shown there - are to be arranged between the drill tip and the outlet mouth, adjacent to it.
  • FIG. 11 shows an example of the reception of drilled material in a drilling tool in the embodiment according to FIG. 1, which can also be used in the other illustrated embodiments - in part by arranging collecting containers around the outlet mouth.
  • the outlet opening 5 is encompassed by a pipe bend 101, to the end of which a flexible, variable-length hose 102 is connected to the end facing away from the outlet opening 5, the other end of which is attached to a container 104 which is set up in a stationary manner, for example on the testicle.
  • the drill core delivered through the recesses 3 and 6 of the drill shaft 2 or the shaft region 7 is broken depending on the requirement of the drilled material on the pipe elbow 101 and reaches the container 104 through the flexible hose 102.
  • the container 104 is connected via a filter 106 to a suction fan 105, which is only indicated in the illustration.
  • the hose for example in the manner of a bellows or spiral bellows, is to be secured against compression under the negative pressure generated by the suction fan, which can be ensured by expansion rings or expansion spirals 103.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP83105877A 1982-06-29 1983-06-15 Appareil de forage Expired - Lifetime EP0097879B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105877T ATE57489T1 (de) 1982-06-29 1983-06-15 Bohrgeraet.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19823224141 DE3224141A1 (de) 1982-06-29 1982-06-29 Bohrer, insbesondere gesteinsbohrer
DE3224141 1982-06-29
DE3225519 1982-07-08
DE19823225519 DE3225519A1 (de) 1982-07-08 1982-07-08 Bohrsystem
DE3237721 1982-10-12
DE19823237721 DE3237721A1 (de) 1982-10-12 1982-10-12 Bohrer, insbesondere gesteinsbohrer

Publications (3)

Publication Number Publication Date
EP0097879A2 true EP0097879A2 (fr) 1984-01-11
EP0097879A3 EP0097879A3 (en) 1985-05-02
EP0097879B1 EP0097879B1 (fr) 1990-10-17

Family

ID=27190198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105877A Expired - Lifetime EP0097879B1 (fr) 1982-06-29 1983-06-15 Appareil de forage

Country Status (3)

Country Link
US (1) US4711609A (fr)
EP (1) EP0097879B1 (fr)
DE (1) DE3381941D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098234A (en) * 1988-07-27 1992-03-24 Verosol Usa Inc. Hollow drill for fabric and the like
EP0855244A3 (fr) * 1996-12-20 1998-11-11 Robert Bosch Gmbh Dispositif d'aspiration pour une machine-outil portable, en particulier pour une machine de forage ou une foreuse à percussion
US6050754A (en) * 1997-05-29 2000-04-18 Black & Decker Inc. Self-centering drill bit with pilot tip, and process
US6102634A (en) * 1995-07-29 2000-08-15 Black & Decker Inc. Masonry drill bit
US11319089B2 (en) 2019-05-19 2022-05-03 Air Black Box Technologies Llc Managed connecting service for mass transit baggage

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Publication number Priority date Publication date Assignee Title
DE3701190A1 (de) * 1987-01-16 1988-07-28 Ziemann Edeltraud Vorrichtung zum ausstossen oder ansaugen fluessiger oder pastoeser medien
DE3803708A1 (de) * 1988-02-08 1989-08-17 Fischer Artur Werke Gmbh Montagevorrichtung fuer schlagbohrmaschinen
US5346389A (en) * 1989-02-24 1994-09-13 W. R. Grace & Co.-Conn. Combustion apparatus for high-temperature environment
US5497841A (en) * 1991-03-14 1996-03-12 William Mohlenhoff Methods for coring a masonry wall
KR100318703B1 (ko) 1993-06-10 2002-11-13 카린 테크놀러지 인코포레이티드 척추임플란트를 삽입하는 척주 디스트랙터
DE19600829A1 (de) * 1996-01-12 1997-07-17 Hilti Ag Bohr- und Meisselgerät
US5996571A (en) * 1996-02-01 1999-12-07 Diamond Products Joint Venture Diamond core drill bit
DE19603528B4 (de) * 1996-02-01 2005-01-13 Robert Bosch Gmbh Handwerkzeugmaschine
SE9601622L (sv) * 1996-04-29 1997-10-30 Jarl Cederblad Förfarande och anordning för utsugning av spån vid svarvning
DE19813573C2 (de) * 1998-03-27 2000-05-18 Bosch Gmbh Robert Verriegelungsvorrichtung
DE10000013A1 (de) * 2000-01-03 2001-07-12 Hilti Ag Saugbohrer
TW592920B (en) * 2001-06-29 2004-06-21 Mitsubishi Materials Corp Boring tool, boring device and boring method
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Also Published As

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DE3381941D1 (de) 1990-11-22
US4711609A (en) 1987-12-08
EP0097879B1 (fr) 1990-10-17
EP0097879A3 (en) 1985-05-02

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